I'm getting the error redeclaration of import Buffer when trying to polyfill Buffer in sveltekit.
Here is my svelte.config.js file:
import adapter from '@sveltejs/adapter-static';
import preprocess from 'svelte-preprocess';
import path from 'path';
import { NodeGlobalsPolyfillPlugin } from '@esbuild-plugins/node-globals-polyfill';
import { NodeModulesPolyfillPlugin } from '@esbuild-plugins/node-modules-polyfill';
import dotenv from 'dotenv-flow';
import rollupNodePolyFill from 'rollup-plugin-node-polyfills';
dotenv.config();
const config = {
preprocess: preprocess(),
kit: {
adapter: adapter({
// default options are shown
pages: 'build',
assets: 'build',
fallback: 'index.html',
precompress: false
}),
vite: {
optimizeDeps: {
esbuildOptions: {
// Node.js global to browser globalThis
define: {
global: 'globalThis'
},
// Enable esbuild polyfill plugins
plugins: [
NodeGlobalsPolyfillPlugin({
buffer: true,
global: true,
process: true,
url: true,
assert: true,
crypto: true,
http: true,
https: true,
os: true,
stream: true,
util: true
}),
NodeModulesPolyfillPlugin()
]
}
},
resolve: {
alias: {
$components: path.resolve('./src/components'),
$stores: path.resolve('./src/stores'),
$api: path.resolve('./src/api'),
$node: path.resolve('./node_modules'),
'@toruslabs/openlogin': path.resolve(
'./node_modules/@toruslabs/openlogin/dist/openlogin.umd.min.js'
),
// polyfills
util: 'rollup-plugin-node-polyfills/polyfills/util',
sys: 'util',
// buffer: 'rollup-plugin-node-polyfills/polyfills/buffer-es6',
events: 'rollup-plugin-node-polyfills/polyfills/events',
stream: 'rollup-plugin-node-polyfills/polyfills/stream',
path: 'rollup-plugin-node-polyfills/polyfills/path',
querystring: 'rollup-plugin-node-polyfills/polyfills/qs',
punycode: 'rollup-plugin-node-polyfills/polyfills/punycode',
url: 'rollup-plugin-node-polyfills/polyfills/url',
string_decoder: 'rollup-plugin-node-polyfills/polyfills/string-decoder',
http: 'rollup-plugin-node-polyfills/polyfills/http',
https: 'rollup-plugin-node-polyfills/polyfills/http',
os: 'rollup-plugin-node-polyfills/polyfills/os',
assert: 'rollup-plugin-node-polyfills/polyfills/assert',
constants: 'rollup-plugin-node-polyfills/polyfills/constants',
_stream_duplex: 'rollup-plugin-node-polyfills/polyfills/readable-stream/duplex',
_stream_passthrough: 'rollup-plugin-node-polyfills/polyfills/readable-stream/passthrough',
_stream_readable: 'rollup-plugin-node-polyfills/polyfills/readable-stream/readable',
_stream_writable: 'rollup-plugin-node-polyfills/polyfills/readable-stream/writable',
_stream_transform: 'rollup-plugin-node-polyfills/polyfills/readable-stream/transform',
timers: 'rollup-plugin-node-polyfills/polyfills/timers',
console: 'rollup-plugin-node-polyfills/polyfills/console',
vm: 'rollup-plugin-node-polyfills/polyfills/vm',
zlib: 'rollup-plugin-node-polyfills/polyfills/zlib',
tty: 'rollup-plugin-node-polyfills/polyfills/tty',
domain: 'rollup-plugin-node-polyfills/polyfills/domain'
}
},
build: {
minify: false,
rollupOptions: {
plugins: [
// Enable rollup polyfills plugin
// used during production bundling
rollupNodePolyFill({
// buffer: false
})
]
}
}
}
}
};
export default config;
So sveltekit uses esbuild for dev and rollup for production builds...so we need two modules.
I almost got my code working but the the polyfilled imports seem to be importing Buffer twice.